Atomic Force Microscopy Studies of Ultra-Thin Films of Cadmium Phosphide Nanoclusters on Mica

  • Tomasz Kowalewski
  • Michael A. Matchett
  • William E. Buhro

Abstract

In this study we demonstrate the use of contact AFM to determine the size of semiconductor nanoclusters with diameters of order of 30 A. This goal is achieved by taking advantage of tip-induced sample modifications, which are usually the major obstacle in AFM imaging. Nanocluster size is deduced from the depth of holes micromachined with a tip in monolayers and from row spacings in 2-D oriented arrays of nanoclusters produced by prolonged scanning. Ease and accuracy of micromachining of nanocluster films point to their potential applications in nanotechnology.

Keywords

Atomic Force Microscopy Study Particle Film Film Disruption Nanocluster Size Oriented Pattern 
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References

  1. 1.
    M.A. Reed and W.P. Kirk, eds., Proc. Int. Symp.,“Nanostructure Physics and Fabrication,” College station, TX, (1989).Google Scholar
  2. 2.
    G.A. Ozin, Nanochemistry: synthesis in diminishing dimensions, Advanced Mater. 4: 612–649 (1992).CrossRefGoogle Scholar
  3. 3.
    M.L. Steigerwald, A.P. Alivisatos, J. M. Gibson, T.D. Harris, R. Kortan, A.J. Muller, A.M. Thayer, T.M. Duncan, D.C. Douglass, and L.E. Brus, Surface derivatization and isolation of semiconductor cluster molecules, J.Am.Chem.Soc. 110: 3046–3050 (1988).CrossRefGoogle Scholar
  4. 4.
    J.H. Fendler, Atomic and molecular clusters in membrane mimetic chemistry, Chem.Rev. 87: 877–899.Google Scholar
  5. 5.
    M.A. Matchett, T. Kowalewski, A.M. Viano, P.C. Gibbons, N.L. Adolphi, M.S. Conradi, W. E. Buhro, Reversed-micelle synthesis of arenethiolate-capped cadmium phosphide nanoclusters, Chem. Mater. (in review).Google Scholar
  6. 6.
    Obtained from Digital Instruments, Santa Barbara, CA.Google Scholar
  7. 7.
    G.F. Meyers, B.M. DeKoven, J.T. Seitz, Is the molecular surface of polystyrene really glassy? Langmuir, 8: 2330–2335 (1992).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • Tomasz Kowalewski
    • 1
  • Michael A. Matchett
    • 1
  • William E. Buhro
    • 1
  1. 1.Department of ChemistryWashington UniversitySt. LouisUSA

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